| Last Modified: 12-11-2024 | 6.11:8.1.0 | Doc ID: RM100000002PY8N |
| Model Year Start: 2025 | Model: GR Corolla | Prod Date Range: [09/2024 - ] |
| Title: G16E-GTS (ENGINE CONTROL): SFI SYSTEM: Drive Start Control; 2025 MY GR Corolla [09/2024 - ] | ||
|
Drive Start Control |
DESCRIPTION
The drive start control is controlled by the ECM.
If the ECM determines that the shift lever and accelerator pedal are operated abnormally, engine output is restricted and, when necessary, a warning is displayed on the combination meter assembly.
CAUTION / NOTICE / HINT
HINT:
Even if the accelerator pedal position is maintained, the engine output may increase when driving uphill and decrease when driving downhill. This is due to the drive start control controlling the engine output, and is not a malfunction.
PROCEDURE
|
1. |
PAST ACTIVATION CONFIRMATION |
(a) Check if the customer operated the vehicle in a way that would cause the drive start control to operate.
Activation conditions
-
Pattern A (When all of the following conditions are met, control starts.)
- The accelerator pedal is open by approximately 1/5 or more.
- The shift lever is moved from P to any forward position D (Including other forward shift positions) or R.
-
Pattern B (When all of the following conditions are met, control starts.)
- The accelerator pedal is open by approximately 1/5 or more.
- The shift lever is moved from R to any forward position D (Including other forward shift positions), any forward position D (Including other forward shift positions) to R, or N to R.
HINT:
Depending on the situation, the shift position may not be changed.
Items Controlled
- Engine output is restricted.
Deactivation Conditions
- The accelerator pedal is released.
- The shift lever is in P or N.
HINT:
- The engine output restricted level differs between pattern A and pattern B.
- During sudden start restraint control, engine output is adjusted based on the road gradient.
-
Drive start control is not activated when TRAC is turned off.
Control will also not operate under the following conditions. (if equipped)
- When in auto LSD mode
- When the transfer switch is operated to switch the status to L4
- When the center differential is locked
- When TRAIL mode is on
- When multi-terrain select is selected
- When crawl control is on
|
Result |
Proceed to |
|---|---|
|
Not performed |
A |
|
Performed |
B |
| B |
|
|
|
2. |
CHECK DTC OUTPUT (HEALTH CHECK) |
(a) Perform the Health Check using the GTS.
(b) Check the DTCs.
|
Result |
Proceed to |
|---|---|
|
DTCs are not output (Hunting) |
A |
|
DTCs are not output (Hesitation/poor acceleration) |
B |
|
DTCs are output |
C |
| B |
|
| C |
|
GO TO DTC CHART |
|
|
3. |
READ VALUE USING GTS (FR, FL, RR, RL WHEEL SPEED) |
(a) Start the engine.
(b) Read the value displayed on the GTS.
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
FR Wheel Speed |
|
FL Wheel Speed |
|
RR Wheel Speed |
|
RL Wheel Speed |
Standard:
|
Condition |
Specified Condition |
|---|---|
|
Vehicle stopped, engine running |
0 km/h (0 mph) |
|
Vehicle being driven at constant speed between 16.1 to 64.4 km/h (10 to 40 mph) |
No large fluctuations when driving at a constant speed |
CAUTION:
When performing a drive test, obey all speed limits and traffic laws.
HINT:
Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.
| NG |
|
INSPECT FRONT OR REAR SPEED SENSOR |
|
|
4. |
READ VALUE USING GTS (LATERAL G AND FORWARD AND REARWARD G) |
(a) Start the engine.
(b) Read the value displayed on the GTS.
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
Lateral G |
|
Forward and Rearward G |
Standard:
|
Condition |
Specified Condition |
|---|---|
|
During deceleration |
Changes continuously |
|
During acceleration |
Changes continuously |
CAUTION:
When performing a drive test, obey all speed limits and traffic laws.
HINT:
Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.
| OK |
|
| NG |
|
|
5. |
INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY |
Click here
![2025 MY Corolla Corolla Hatchback GR Corolla [09/2024 - ]; UC80F (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: INSPECTION](/t3Portal/stylegraphics/info.gif)
| NG |
|
|
|
6. |
READ VALUE USING GTS (ACCELERATOR POSITION SENSOR NO. 1 VOLTAGE % AND NO. 2 VOLTAGE %) |
(a) Turn the ignition switch to ON.
(b) Read the value displayed on the GTS.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Accelerator Position Sensor No.1 Voltage % |
|
Accelerator Position Sensor No.2 Voltage % |
Standard:
|
Condition |
Specified Condition |
|---|---|
|
Accelerator Pedal Released → Depressed |
Changes continuously |
| OK |
|
| NG |
|
|
|